Name: Breaking down why health officials are so worried about Omicron wariant
Uploaded: Sat Nov 27 2021 23:40:05 GMT+0000 (UTC)
Duration: 3 min 15 s
Description: NBC News’ Jose Diaz-Balart interviews experts to find out why the new Omicron variant is so worrying. Is it more transmissible? More deadly? And will the vaccines work on it?

Nov. 27, 202103:15